View source for NSH Routing: Implementation of Network Service Headers to realize the service chain by steering traffic across the VNFs.

==Project Work ==
Focus of this project is to realize a service plane as illustrated in the NSH RFC [https://datatracker.ietf.org/doc/draft-ietf-sfc-nsh/]  using the SDN controller of your choice. Ryu, Pox, OpenDayLight, Floodlight, etc. 
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Work primarily involves the following tasks:
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# Understand the NSH proposal. refer to the RFC [https://tools.ietf.org/pdf/draft-ietf-sfc-nsh-10.pdf]. 
# Pick the SDN controller of your choice. Python based Ryu/Pox or Java based ONOS, ODL, OpenDaylight controllers.
# Implementa the base NSH - a dedicated service plane for function chaining and validate simple use cases.

OR
 
# Pick the existing NSH implementations for the ONOS and ODL (listed below) and design for optimization.
# NSH has high overheads, it can be further optimized to address efficient routing by lowering the SDN flow entries and reducing the per packet header bytes.

 
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Note:
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There are ongoing projects in ONOS and OpenDaylight community for implementing the NSH. 
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You can leverage on these available implementations and focus on the optimization part instead*. 
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We already have one such design for optimizing NSH. If interested, you can discuss with our team and implement it. 
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== Document Links ==
[1] NSH RFC [https://datatracker.ietf.org/doc/draft-ietf-sfc-nsh/]
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[2] SFC Use cases [https://datatracker.ietf.org/doc/draft-ietf-sfc-dc-use-cases/]
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[3] ONOS SFC Project: [https://wiki.onosproject.org/pages/viewpage.action?pageId=4163192]
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[4] ODL SFC Project: [https://wiki.opendaylight.org/view/Service_Function_Chaining:Main]
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